struts-user mailing list archives

Pranav wrote:
> Hi,
>
> I want to put a validation in struts2 using field-validator type="regex" such that any
string which contains any of the <, > or any of the alternative representation like
&lt; should return a validation failure message. How do I do that?. I believe that if
I give a pattern to regex, it shows error message if it DOES NOT match the pattern but here
I know the pattern which the input field must not match in order to be valid. Any help?
>
> <field-validator type="regex">
> <param name="expression"><![CDATA[!(^.*(<|>|&lt;|&gt;|&#60;|&#62;)+.*$)]]></param>
[i want to provide a pattern such that the input string does not match it]
> <message>Input has invalid characters</message>
> </field-validator>
Try <![CDATA[^[^<>...]*$]> -- in other words, match a string of zero or
more characters excluding <, >, ...
L.
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